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Full-Text Articles in Forest Sciences
Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity, Cengi̇z Çesko, Sami̇ Gashi̇, Gülnur Arabaci, Hati̇ce Palüzar, Berat Durmi̇shi̇, Era Bruçi̇, Fjolla Vllasali̇u, Nedi̇m Özdemi̇r
Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity, Cengi̇z Çesko, Sami̇ Gashi̇, Gülnur Arabaci, Hati̇ce Palüzar, Berat Durmi̇shi̇, Era Bruçi̇, Fjolla Vllasali̇u, Nedi̇m Özdemi̇r
Turkish Journal of Agriculture and Forestry
this study, the effects of a number of commonly used pesticides on the activity of the polyphenol oxidase (PPO) enzyme from pesticide-free and pesticide-applied 'Jonagold' apples were comparatively evaluated. Substrates 4-methylcatechol, pyrocatechol, pyrogallol and L-tyrosine were used to determine the substrate specificity of the PPO enzyme obtained from apple. According to the results, on the contrary, PPO enzyme from 'Jonagold' apple did not show any activity against L-tyrosine substrate which is a monophenolic substrate, the enzyme had high affinity against 4-methylcatechol, pyrocatechol and pyrogallol which are di and tri phenolic substrates. Km values of PPO enzyme obtained from pesticide-free …
Efficacy Of Trichogramma Evanescens And Bacillus Thuringiensis Var. Kurstaki In Control Of Cydia Pomonella (L.) In Turkey, Sevcan Öztemi̇z, Ali̇ Küden, Serpi̇l Nas, Işilay Lavkor
Efficacy Of Trichogramma Evanescens And Bacillus Thuringiensis Var. Kurstaki In Control Of Cydia Pomonella (L.) In Turkey, Sevcan Öztemi̇z, Ali̇ Küden, Serpi̇l Nas, Işilay Lavkor
Turkish Journal of Agriculture and Forestry
This study was conducted to evaluate the effectiveness of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) release with as well as without Bacillus thuringiensis var. kurstaki (Berliner) in biological control of Cydia pomonella (L.) (Lepidoptera: Tortricidae) in the Galaxy Gala apple variety grafted onto M9 rootstock in 2016. Four treatments were analyzed: releasing T. evanescens alone (TE), applying B. thuringiensis var. kurstaki (BT) alone, applying both (TE + BT), and a control (C) without any application at all. The experiment design entailed randomized blocks with four replicates. In each generation of the egg stage, 100,000 parasitoids per hectare were released twice (1440 …
Molecular Markers To Evaluate Genetic Diversity Among Venturia Inaequalis Isolates Obtained From Apple Plantations In Isparta Province, Suat Kaymak, Nuh Boyraz, Jon Daniels
Molecular Markers To Evaluate Genetic Diversity Among Venturia Inaequalis Isolates Obtained From Apple Plantations In Isparta Province, Suat Kaymak, Nuh Boyraz, Jon Daniels
Turkish Journal of Agriculture and Forestry
Turkey, the third leading apple producer in world, produces approximately 2.6 million tons of apples per year. Venturia inaequalis, the causal agent of apple scab, is a major fungal disease among apples varieties. This study was conducted in accordance with the plant protection method for isolates collected from the apple production areas in Isparta Province. The purpose of this study was to determine genetic differences among V. inequalis isolates causing apple scab, and to discriminate the effects of varieties and geographical origins on genetic diversity. For this purpose, a total of 83 samples from the leaves and fruits of infected …
Fruit Quality Parameters And Molecular Analysis Of Apple Germplasm Resourcesfrom Van Lake Basin, Turkey, Tuncay Kaya, Fi̇kri̇ Balta, Suat Şensoy
Fruit Quality Parameters And Molecular Analysis Of Apple Germplasm Resourcesfrom Van Lake Basin, Turkey, Tuncay Kaya, Fi̇kri̇ Balta, Suat Şensoy
Turkish Journal of Agriculture and Forestry
No abstract provided.
Responses Of Apple Tree Cultivars To Drought: Carbohydrate Composition In The Leaves, Eszter Nemeskéri, Eszter Kovács-Nagy, József Nyéki, Éva Sárdi
Responses Of Apple Tree Cultivars To Drought: Carbohydrate Composition In The Leaves, Eszter Nemeskéri, Eszter Kovács-Nagy, József Nyéki, Éva Sárdi
Turkish Journal of Agriculture and Forestry
No abstract provided.
Construction Of Dense Genetic Linkage Maps Of Apple Cultivars Kaşel-41and Williams' Pride By Simple Sequence Repeat Markers, Elmira Ziya Motalebipour, Sali̇h Kafkas, Şeri̇f Özongun, Ayşe Ni̇lgün Atay
Construction Of Dense Genetic Linkage Maps Of Apple Cultivars Kaşel-41and Williams' Pride By Simple Sequence Repeat Markers, Elmira Ziya Motalebipour, Sali̇h Kafkas, Şeri̇f Özongun, Ayşe Ni̇lgün Atay
Turkish Journal of Agriculture and Forestry
No abstract provided.
Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann
Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann
Turkish Journal of Agriculture and Forestry
Plant samples were collected from the main apple growing provinces of Turkey in order to evaluate the incidence of 4 important apple virus diseases during spring 2004. Collected leaves and shoots were tested using enzyme linked immunosorbent assay (ELISA) and reverse transcription polymerase chain reaction (RT-PCR) for Apple mosaic virus (ApMV), Apple stem grooving virus (ASGV) and Apple chlorotic leaf spot virus (ACLSV). Since no commercial antiserum is available, Apple stem pitting virus (ASPV) was tested only using RT-PCR and the results were compared. A total of 174 apple samples were collected from varietal collections belonging to governmental and university …
Effect Of Storage Time On Some Mechanical Properties And Bruise Susceptibility Of Pears And Apples, Yeşi̇m Benal Yurtlu, Doğan Erdoğan
Effect Of Storage Time On Some Mechanical Properties And Bruise Susceptibility Of Pears And Apples, Yeşi̇m Benal Yurtlu, Doğan Erdoğan
Turkish Journal of Agriculture and Forestry
This research was conducted to evaluate the effect of storage time on some mechanical properties and bruise susceptibility of Williams and Ankara varieties of pear and Starkspur Golden Delicious and Starking varieties of apple. The research was performed in 2 stages. Firstly, compression tests were conducted to determine the mechanical properties of fruits. Secondly, an impact test was used to determine the bruise susceptibility of test materials. Impact tests were performed using a pendulum with 50 cm arm length. The tests were carried out at 5 storage times (harvest day, 1^{st}, 2^{nd}, 3^{rd} and 4^{th} month) and 3 drop heights …
Effects Of Controlled Atmosphere Storage On Scald Development And Postharvest Physiology Of Granny Smith Apples, Mustafa Erkan, Mustafa Pekmezci̇, Hami̇de Gübbük, Işilay Karaşahi̇n
Effects Of Controlled Atmosphere Storage On Scald Development And Postharvest Physiology Of Granny Smith Apples, Mustafa Erkan, Mustafa Pekmezci̇, Hami̇de Gübbük, Işilay Karaşahi̇n
Turkish Journal of Agriculture and Forestry
The effects of different O2 and CO_2 concentrations on the scald development and postharvest physiology of Granny Smith apples (Malus domestica Borkh.) were investigated. Apples were harvested at optimal harvest time and stored in 1% CO_2/2% O_2, 2% CO_2/2% O_2, 3% CO_2/2% O_2 and 0% CO_2/21% O_2 (control) at 0 °C and 90-92% relative humidity for 9 months. At certain intervals, samples were collected from each storage condition for physical and chemical analysis (e.g. weight loss, flesh firmness, amount of titratable acid, total soluble solids, skin color, scald development, respiration rate and decayed fruit). Respiration rates of the apples were …
Determining The Effects Of Vibration Parameters And Packaging Method On Mechanical Damage In Golden Delicious Apples, Kubi̇lay K. Vursavuş, Faruk Özgüven
Determining The Effects Of Vibration Parameters And Packaging Method On Mechanical Damage In Golden Delicious Apples, Kubi̇lay K. Vursavuş, Faruk Özgüven
Turkish Journal of Agriculture and Forestry
This research was conducted to evaluate the effects of vibration frequency, vibration acceleration, packaging method, and vibration duration on the mechanical damage during apple transportation. The research was performed in 3 stages. Firstly, vibration frequency and vibration acceleration were measured on the truck-bed for determining the vibration frequency and acceleration distribution. Secondly, packaging transmissibility and vibration frequency sensitivity for all the packaging methods used in this research were measured. Thirdly, a laboratory vibrator, which simulates the road transportation under laboratory conditions, was used to obtain some factors influencing the mechanical damage during apple transportation. According to the results measured on …
Harvest Date Influences Superficial Scald Development In Granny Smith Apples During Long Term Storage, Mustafa Erkan, Mustafa Pekmezci̇
Harvest Date Influences Superficial Scald Development In Granny Smith Apples During Long Term Storage, Mustafa Erkan, Mustafa Pekmezci̇
Turkish Journal of Agriculture and Forestry
The effects of harvest dates on superficial scald development and postharvest quality in 'Granny Smith' apples (Malus domestica Borkh.) were investigated. Apples were harvested at 15-day intervals during 2 consecutive years (2000-2001) and stored at 0 °C with 90% relative humidity for 8 months. At the end of the 8 - month storage period plus an additional 1 week at 20 °C the percentage of superficial scald was lower (24.4%) in late harvested (November 15) apples than in apples harvested early (October 15), which was 85.4%. The apples harvested late reached a climacteric maximum quicker than those harvested early. The …
The Effects Of Sewage Sludge Applications On The Yield,Growth, Nutrition And Heavy Metal Accumulation In Apple Trees Growing In Dry Conditions, Mehmet Ali̇ Bozkurt, Tarik Yarilgaç
The Effects Of Sewage Sludge Applications On The Yield,Growth, Nutrition And Heavy Metal Accumulation In Apple Trees Growing In Dry Conditions, Mehmet Ali̇ Bozkurt, Tarik Yarilgaç
Turkish Journal of Agriculture and Forestry
The effects of various sewage sludge (biosolid) rates and a single dose barnyard manure application on the fruit yield, growth, nutrition and heavy metal accumulation of apple trees were investigated. The experiment was conducted using a completely randomized design with 4 replicates in dry conditions in Van, in the East Anatolia region of Turkey in 2000 and 2001. Sewage sludge was added to the soil at the rates of 0, 10, 20, 40 and 60 kg tree^{-1}. Barnyard manure was applied to the soil at a rate of 25 kg tree^{-1}. Two years' data showed that the addition of sewage …